Amino Acid‐Based Ionic Liquids‐Aided CO<sub>2</sub> Hydrogenation to Methanol
Ayeshe Moazezbarabadi, Anja Kammer, Elisabetta Alberico, Henrik Junge, Matthias Beller
Abstract
Abstract This study explored the use of amino acid‐based ionic liquids to facilitate the conversion of carbon dioxide (CO 2 ) into methanol through catalytic hydrogenation. Combining tetrabutylammonium L‐argininate (TBA⋅Arg) with the ruthenium Ru‐MACHO‐BH complex allowed achieving significant yields of methanol under optimized conditions, with a turnover number (TON) up to 700. By systematically varying key reaction parameters, we demonstrated that the TBA⋅Arg ionic liquid promotes the efficient hydrogenation pathway leading to methanol formation, thus offering a sustainable approach to CO 2 valorization. These findings underscore the potential of amino acid‐based ionic liquids in catalyzing the transformation of CO 2 into valuable chemicals, contributing to carbon mitigation efforts.